Are you actually suggesting that the safety of 200+ people is less important than your daughter getting home on time??? I think you need to take a few minutes to get things in perspective.
The aircraft has to return as soon as possible to the safest airport to do so, often the one it left, as there may be damage that would manifest itself over the Atlantic etc. As has been pointed out, your perspective on this whole incident would be a lot different if your beloved daughter was on the flight with the issues, you definitely wouldnt want them continuing to destinations.
Easy jet are responsible for keeping their passengers informed first and foremost, likewise gatwicks main concern will be people in their airport. If you where needing to know when to be at the airport to pick your daughter up, may I suggest that it would not have been entirely unreasonable for her, having been informed when her flight was leaving to let you know, maybe by the mircale of a phone or text.
Now while gatwick updating their website is inconvenient, the fact you knew enough to come on here in another feed and moan about this suggests you know enough to source info separately so really shouldn't be moaning.
Really the only person you know of inconvienced here is your daughter, who was 3.5 hours late, this is hardly the end of the world. The fact you are moaning about being delayed by a security alert, in paris, city that's understandably hyper vigilant suggest you literally have no sense of perspective and are either just a troll or the kind person who thinks of every inconvience as an excuse to try and get compo.
If your every journey is blighted by incompetence, maybe, just maybe you should cease travel or consider the common denominator.
